Buffet serving cart



FIG. 1 is a perspective view of a buffet serving cart showing my new design;

FIG. 2 is an elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevation view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a buffet serving cart, substantially as shown. 